CN201071393Y - Method for fast making coaxial fed powder focus coincide with laser light spot - Google Patents
Method for fast making coaxial fed powder focus coincide with laser light spot Download PDFInfo
- Publication number
- CN201071393Y CN201071393Y CN 200720170212 CN200720170212U CN201071393Y CN 201071393 Y CN201071393 Y CN 201071393Y CN 200720170212 CN200720170212 CN 200720170212 CN 200720170212 U CN200720170212 U CN 200720170212U CN 201071393 Y CN201071393 Y CN 201071393Y
- Authority
- CN
- China
- Prior art keywords
- connecting cylinder
- powder
- cylinder
- feeding
- overlapped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a device that can quickly superpose the coax feeding powder focus with the laser light spot. The device comprises an upper connecting cylinder, a middle cylinder, a lower connecting cylinder, a positioning unit, a lock unit; wherein, the upper connecting cylinder is connected with a transmitting condensing lens seat; the upper end of the middle cylinder is fixedly connected with the upper connecting cylinder and the lower end thereof is provided with an inner ring stage; the lower connecting cylinder is connected with a powder feeding head and the outer diameter of the lower cylinder body of the lower connecting cylinder is smaller than the inner diameter of the inner ring stage of the middle cylinder; the upper end of the lower connecting cylinder has an outer protruding ring stage which is overlapped with the inner ring stage of the middle cylinder and can make the level radial movement thereon; the positioning unit positions the level position of the outer protruding ring stage of the lower connecting cylinder which moves on the inner ring stage of the middle cylinder; the lock unit locks the middle cylinder with the lower connecting cylinder. The device can effectively improve the powder availability and decrease the probability for burning the transmitting condensing lens.
Description
Technical field
The utility model belongs to the field of metallurgical machine technology, relates in particular to a kind of device that coaxial powder-feeding powder focus is overlapped with laser facula.
Background technology
In compact metal part laser fast forming and metal surface through laser coating technique, a kind of material addition manner that generally adopts is a coaxial powder-feeding, and coaxial powder-feeding can effectively overcome in the side direction powder feeding process, and laser beam direction of motion is to the influence of powder using efficiency.When the coaxial powder-feeding powder converges focus when overlapping with laser beam spot, the utilization ratio of powder is for the highest, and when not overlapping, not only reduce the utilization ratio of powder, can have a strong impact on laser melting coating upper layer planeness during laser melting coating, during the laser fast forming metal parts, then often cause part to be difficult to be shaped.Make the coaxial powder-feeding powder converge focus and overlap with laser beam spot, key is that the axis of laser beam and the axis of coaxial powder feeding head coincide.Under normal circumstances, CO
2Laser beam is after 45 ° of mirror reflects, laser beam is changed into vertical direction by horizontal direction, shown in Fig. 5 (a), the coaxial powder-feeding shower nozzle is connected with projection condensing lens microscope base by screw thread, when laser beam central axis and powder-supplying spray head central axes, the powder convergent point that powder-supplying spray head is sent will overlap with laser beam spot.Yet; under practical situation; be subjected to the influence of accuracy of screw machining and assembly precision; the phenomenon that bobbin thread does not overlap in laser beam central axis and the coaxial powder feeding head usually can appear; this phenomenon mainly is the powder-feeding head central axis with respect to due to the run-off the straight of laser beam central axis; shown in Fig. 5 (b); in general; powder-feeding head laser exit diameter is 6mm; if the powder-feeding head central axis is with respect to 0.5 ° of laser beam central axis deflection, then through the long distance back (the long 380mm of Jiao of transmission focusing mirror, its focus beam spot diameter, is 2mm) of 380mm; the position of powder-feeding head laser exit central point will be offset 3.32mm; at this moment, laser beam just directly affacts on the powder-supplying spray head, thereby burns out nozzle; and cause stifled powder, force laser melting coating or part forming process to be interrupted.After the middle situation of Fig. 5 (b) occurring, the solution of employing has two kinds, and (1) disassembles powder-feeding head from the condensing lens microscope base, then, reinstall, but this method can not be dealt with problems usually; (2) directly adjust the angle of 45 ° of speculums, make reflector laser from the output of powder-feeding head laser exit center, this inflation method has the danger that burns out condensing lens.Shown in Fig. 5 (c), after adjusting the angle of 45 ° of speculums, change has taken place in the direction of reflection lasering beam, though, from the powder-feeding head laser exit, laser beam is exported from the powder-feeding head export center, in fact the segment beam through 45 ° of mirror reflects laser beams has acted on the microscope base of transmission focusing mirror, and under the effect of laser, the microscope base temperature raises, very fast transmission focusing mirror will be burnt out because cooling is not enough.
Summary of the invention
The purpose of this utility model provides the good device that coaxial powder-feeding powder focus is overlapped with laser facula of a kind of result of use.
For achieving the above object, the utility model is taked following design:
A kind of device that coaxial powder-feeding powder focus is overlapped with laser facula, it comprises:
One is used for the last connecting cylinder that is connected with transmission focusing mirror microscope base;
One intermediate cylinder, fixedly connected with last connecting cylinder in the upper end, ring platform in its lower end has;
One is used for the following connecting cylinder that is connected with powder-feeding head, and the lower shell external diameter of following connecting cylinder is less than the interior ring platform internal diameter of intermediate cylinder, and its upper end has outer bulge loop platform, and this outer bulge loop platform is overlapped on also can be done horizontal radial thereon on the interior ring platform of intermediate cylinder and move;
Locating unit, bulge loop platform level attitude location outside the following connecting cylinder that is used for moving on the ring platform in intermediate cylinder;
One locking unit is used for and will locks between intermediate cylinder and following connecting cylinder.
There is the internal thread that is connected with transmission focusing mirror microscope base the described connecting cylinder upper end of going up, the outside screw that described connecting cylinder doffing Duan Youyu powder-feeding head down connects, and last connecting cylinder is threaded with intermediate cylinder.
Described positioning unit is a location bolt.
Described locking unit is a securing ring, and this securing ring is set in down on the doffing of connecting cylinder.
The utility model has the advantages that: this device is easy to use, utilizes this device can effectively improve the utilization ratio of powder and reduces the transmission focusing mirror by the probability of scaling loss.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2-a is a connecting cylinder structural representation (front view) on the utility model
Fig. 2-b is a connecting cylinder structural representation (vertical view) on the utility model
Fig. 3-a is the utility model intermediate cylinder structural representation (front view)
Fig. 3-b is the utility model intermediate cylinder structural representation (vertical view)
Fig. 4-a is a connecting cylinder structural representation (front view) under the utility model
Fig. 4-b is a connecting cylinder structural representation (vertical view) under the utility model
Fig. 5 is CO in the prior art
2The relative position synoptic diagram of laser beam and coaxial powder feeding head
Embodiment
As shown in Figure 1, device one preferred embodiment for the utility model makes coaxial powder-feeding powder focus overlap with laser facula is fast mainly constituted by last connecting cylinder 1, intermediate cylinder 2, following connecting cylinder 3 and tack bolt 4 and securing ring 5.
Shown in Fig. 2-a, Fig. 2-b, there is for the internal thread that is connected with transmission focusing mirror microscope base the outside screw that the lower end has confession and intermediate cylinder to be spirally connected described last connecting cylinder 1 upper end.
Shown in Fig. 3-a, Fig. 3-b, the internal thread that described intermediate cylinder 2 upper ends have confession and last connecting cylinder to be spirally connected, ring platform 201 in its lower end has.
Shown in Fig. 4-a, Fig. 4-b, the upper end of described down connecting cylinder 3 has outer bulge loop platform 301, and this outer bulge loop platform 301 is overlapped on also can be done horizontal radial thereon on the interior ring platform 201 of intermediate cylinder and move; The lower end of following connecting cylinder 3 has whole section outside screw, for the locking that is connected and is used for securing ring with powder-feeding head.
The utility model be by adjust powder-feeding head radially the level attitude of all directions realize fast that laser beam is exported from powder-feeding head laser exit center and the overlapping of realization coaxial powder-feeding powder focus and laser beam spot, so will adjust powder-feeding head radial level attitude need regulate connected down connecting cylinder 3 and both can, the lower shell external diameter of connecting cylinder 3 is less than the interior ring platform internal diameter 0～8mm of intermediate cylinder 2 under designing in the present embodiment, can guarantee down that connecting cylinder 3 does 0～8mm horizontal radial with respect to intermediate cylinder 2 and move, after realizing the relative horizontal shift of intermediate cylinder 2 and following connecting cylinder 3, intermediate cylinder and following connecting cylinder is closely fixing with securing ring 5 and tack bolt 4.
The concrete working process of the utility model is as follows: at first, adjust 45 ° of speculums 1 ', make laser beam 2 ' vertically by the transmission focusing mirror, be that vertical beam of light is passed through from transmission focusing mirror center, after adjusting, with the connecting cylinder 1 of going up of the present utility model, following connecting cylinder 3 is respectively by screw thread and transmission focusing mirror microscope base 3 ', coaxial powder feeding head 4 ' connects, at this moment, securing ring 5 and tack bolt 4 all are in relaxation state, after the connection, a blank sheet of paper bag that soaked water are touched the coaxial powder feeding head exit end, then will stay the coaxial powder feeding head outlet on the wetted blank sheet of paper and rectify circular contour, laser power is adjusted into 200W, opens laser, Laser Measurement is the relative position with positive circular contour in hole that blank sheet of paper passes, if laser in hole that blank sheet of paper passes not at the center of positive circular contour, then move horizontally down connecting cylinder, then, stick a new blank sheet of paper that soaks again again, repeat said process, be positioned at the center of positive circular contour up to the hole that laser passes on blank sheet of paper, last, securing ring and tack bolt are tightened.
Claims (5)
1. device that coaxial powder-feeding powder focus is overlapped with laser facula is characterized in that it comprises:
One is used for the last connecting cylinder that is connected with transmission focusing mirror microscope base;
One intermediate cylinder, fixedly connected with last connecting cylinder in the upper end, ring platform in its lower end has;
One is used for the following connecting cylinder that is connected with powder-feeding head, and the lower shell external diameter of following connecting cylinder is less than the interior ring platform internal diameter of intermediate cylinder, and its upper end has outer bulge loop platform, and this outer bulge loop platform is overlapped on also can be done horizontal radial thereon on the interior ring platform of intermediate cylinder and move;
Locating unit, bulge loop platform level attitude location outside the following connecting cylinder that is used for moving on the ring platform in intermediate cylinder;
One locking unit is used for and will locks between intermediate cylinder and following connecting cylinder.
2. the device that coaxial powder-feeding powder focus is overlapped with laser facula according to claim 1, it is characterized in that: there is the internal thread that is connected with transmission focusing mirror microscope base the described connecting cylinder upper end of going up, the outside screw that described connecting cylinder doffing Duan Youyu powder-feeding head down connects, last connecting cylinder is threaded with intermediate cylinder.
3. the device that coaxial powder-feeding powder focus is overlapped with laser facula according to claim 1 is characterized in that: described positioning unit is a location bolt.
4. the device that coaxial powder-feeding powder focus is overlapped with laser facula according to claim 1 is characterized in that: described locking unit is a securing ring, and this securing ring is set in down on the doffing of connecting cylinder.
5. the device that quick realization coaxial powder-feeding powder focus according to claim 1 overlaps with laser facula is characterized in that: the lower shell external diameter of described connecting cylinder down is less than the interior ring platform internal diameter 0～8mm of intermediate cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720170212 CN201071393Y (en) | 2007-08-15 | 2007-08-15 | Method for fast making coaxial fed powder focus coincide with laser light spot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720170212 CN201071393Y (en) | 2007-08-15 | 2007-08-15 | Method for fast making coaxial fed powder focus coincide with laser light spot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201071393Y true CN201071393Y (en) | 2008-06-11 |
Family
ID=39549954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720170212 Expired - Lifetime CN201071393Y (en) | 2007-08-15 | 2007-08-15 | Method for fast making coaxial fed powder focus coincide with laser light spot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201071393Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010308A (en) * | 2012-12-27 | 2013-04-03 | 徐州重型机械有限公司 | Crane and split type frame structure thereof |
| CN105136085A (en) * | 2015-07-20 | 2015-12-09 | 北京航天新风机械设备有限责任公司 | Laser beam and powder cone deviation measurement method in laser cladding |
| CN105665705A (en) * | 2016-03-18 | 2016-06-15 | 山东能源重装集团大族再制造有限公司 | Metal 3D printing device |
| CN106435576A (en) * | 2016-11-21 | 2017-02-22 | 华南师范大学 | Paraxial powder feeding nozzle device |
| CN112074361A (en) * | 2018-02-13 | 2020-12-11 | 弗劳恩霍夫应用研究促进协会 | Device for regulating the flow of powder relative to the central longitudinal axis of an energy beam |
-
2007
- 2007-08-15 CN CN 200720170212 patent/CN201071393Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010308A (en) * | 2012-12-27 | 2013-04-03 | 徐州重型机械有限公司 | Crane and split type frame structure thereof |
| CN105136085A (en) * | 2015-07-20 | 2015-12-09 | 北京航天新风机械设备有限责任公司 | Laser beam and powder cone deviation measurement method in laser cladding |
| CN105136085B (en) * | 2015-07-20 | 2018-01-02 | 北京航天新风机械设备有限责任公司 | The measuring method of laser beam and powder cone irrelevance in a kind of laser melting coating |
| CN105665705A (en) * | 2016-03-18 | 2016-06-15 | 山东能源重装集团大族再制造有限公司 | Metal 3D printing device |
| CN106435576A (en) * | 2016-11-21 | 2017-02-22 | 华南师范大学 | Paraxial powder feeding nozzle device |
| CN112074361A (en) * | 2018-02-13 | 2020-12-11 | 弗劳恩霍夫应用研究促进协会 | Device for regulating the flow of powder relative to the central longitudinal axis of an energy beam |
| CN112074361B (en) * | 2018-02-13 | 2023-03-28 | 弗劳恩霍夫应用研究促进协会 | Device for regulating the flow of powder relative to the central longitudinal axis of an energy beam |
| US11890675B2 (en) | 2018-02-13 | 2024-02-06 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Arrangement for adjusting a powder flow in relation to the central longitudinal |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201071393Y (en) | Method for fast making coaxial fed powder focus coincide with laser light spot | |
| CN101733550B (en) | Welding wire sending and pulverized solder sending laser cladding forming method and device | |
| CN101264519B (en) | Adjustable laser coaxial powder feeding nozzle | |
| CN101148760B (en) | Technique for manufacturing inner-light powder-supplying by laser machining forming and inner-light powder-supplying spray head | |
| CN110499503B (en) | Efficient double-beam light inner coaxial powder feeding cladding head light path structure and processing method | |
| US11772193B2 (en) | Annular hollow offset-focus laser cladding device | |
| CN101695752A (en) | Precise laser micro-forming and powder feed method and coaxial laser powder device thereof | |
| CN103212863B (en) | The laser process equipment of thin-wall pipes | |
| CN109837497A (en) | A kind of central coaxial powder feeding formula supersonic speed laser spraying method | |
| CN208224631U (en) | A kind of optical system generating low speckle annular beam | |
| CN111014946A (en) | Water-guided laser processing device and processing system | |
| CN107662046A (en) | A kind of Water Jet Guided Laser processing coupling device of off-axis light path | |
| CN102259236A (en) | Alignment device for coupling of water-jet guided laser | |
| CN214768946U (en) | Three-beam wire powder mixed laser cladding system | |
| CN102465195B (en) | Light-water coaxial laser shock reinforcing head | |
| CN201864747U (en) | Light and water coaxial laser impact enhancing head | |
| CN103484653A (en) | Device and method for impacting and strengthening fastening hole through ring laser | |
| CN201574192U (en) | Light, powder and gas coaxial conveying device for laser cladding formation | |
| CN103212861A (en) | Laser micro processing equipment for double-station thin-walled tubes | |
| CN105149774B (en) | A kind of beam shaping method for laser plasma arc coaxial hybrid welding | |
| CN202317437U (en) | Blowing sprayer for laser cutting | |
| CN203664924U (en) | Water-jet-guided laser processing coupling device | |
| CN113634921B (en) | High-power air explosion-free water-guide laser water-light coupling alignment cutting head with multi-focus focusing lens | |
| CN204487011U (en) | The cutting equipment of based semiconductor laser instrument | |
| CN209664566U (en) | A kind of inside pipe wall positioning and cooling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080611 |
|
| CX01 | Expiry of patent term |